Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If the two metals 
and 
are exposed to radiation of wavelength 
. The work functions of metals A and B are 4.8eV and 2.2eV. Then choose the correct option.
A
Both metals A and B will emit photo-electrons
B
Metal 
will not emit photo-electrons
will not emit photo-electrons
C
Metal B will not emit photo-electrons
D
Both metals A and B will not emit photo-electrons
Text Solution
Verified by ExpertsThe correct answer is:
B
If 
, photo electrons will emit.
A will not emit and B will emit.
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